低摩擦軸承，壽命長(zhǎng)，1/2至8“管道（12.7至203 mm）
PDWS插入式葉輪流量計(jì)設(shè)計(jì)用于1/2至8”的管道尺寸，可用材料包括黃銅、不銹鋼、PVC和聚丙烯。PDWS系列適用于PWF系列、各種定制三通、鞍座或青銅、PVC和不銹鋼焊接配件。
工作原理
使用葉輪旋轉(zhuǎn)來測(cè)量流量。液體流動(dòng)推動(dòng)轉(zhuǎn)子，旋轉(zhuǎn)由霍爾效應(yīng)傳感器檢測(cè)。輸出為電流衰減脈沖信號(hào)，可連接至系列RTI以顯示流量和總流量，或連接至系列BAT以顯示4至20 mA模擬信號(hào)。
附件
BAT，盲模擬變送器，將脈沖輸出轉(zhuǎn)換為4至20 mA模擬輸出。外殼通電，儀表回路通電。RTI2，速率總計(jì)指示器，將脈沖輸出轉(zhuǎn)換為4至20 mA模擬輸出，并帶有本地流量和累加顯示。該裝置為回路供電，可安裝在儀表外殼上，并提供高/低流量警報(bào)。PWD，脈沖分配器，用于起搏電子計(jì)量泵。該裝置使用旋轉(zhuǎn)開關(guān)將輸入頻率分為1到9999之間的任意數(shù)字，以適應(yīng)多個(gè)計(jì)量泵的輸入。
產(chǎn)品應(yīng)用
工業(yè)水和廢水處理冷卻水監(jiān)控工業(yè)流體控制化學(xué)配比波動(dòng)流體傳導(dǎo)性應(yīng)用
特點(diǎn)
軸承減少摩擦系數(shù)，保持高精度
PVC和聚丙烯主體材料提供抗腐蝕性介質(zhì)
Service:Compatible clean liquids.
Range:0.3 to 30 ft/s (0.09 to 9.14 m/s).
Wetted Materials:
Sensor: Brass, 316 SS, PVC, or polypropylene; Rotor: PVDF; Shaft: Nickel-bonded tungsten carbide (ceramic optional); Bearings: Ruby jewel; O-Ring: EPDM (fluoroelastomer optional).
Accuracy:±1.5% FS.
Temperature Limits:Brass, 316 SS: 200°F (93°C); PVC, Polypropylene: 130°F (55°C).
Pressure Limits:
Brass: 200 psi (14 bar); 316 SS: 250 psi (17 bar); PVC, polypropylene: 175 psi (12 bar) @ 75°F (24°C); High pressure option: 400 psi (28 bar) (SS only).
Process Connection:See catalog page.
Output:
Current sinking, square wave pulse, opto-isolated.
Power Requirements:6 to 24 VDC, 2 mA (max. 20 mA).
Electrical Connection:#22 AWG, 3 conductor, 18' (5.5 m) cable (max. 2000' run).
Enclosure Rating:NEMA 4X (IP66).
Weight:2 lb (907 g).
| EXAMPLE | PDWS | 1 | B | CRS | Series PDWS-1B-CRS |
| SERIES | PDWS | Insertion Paddlewheel Flow Sensor | |||
| SIZE | 1 2 | 1-1/2 to 3 inch pipe 4 to 8 inch pipe | |||
| MATERIAL | B P S Y | Brass PVC 316 Stainless steel Polypropylene | |||
| OPTIONS | CRS FOR HPO IMM MPU PC4 PC5 SCC | Ceramic shaft Fluoroelastomer o-ring High pressure option Immersible Micropower pickup Metering pump 4-pin connector Metering pump 5-pin connector 3-pin control connector | |||
| Note: Need to purchase with Series PWF fitting for proper installation. |
